JP2014129020A - Door device and vehicle provided with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door device which can actuate the stopper mechanism side by a handle operation on the lock mechanism side and thus has good operability.SOLUTION: A door device is configured so as to rotate a lower-side triangular board link 35 through a link mechanism by operating a handle 7 to rotate a protrusion piece part 39 of the lower-side triangular board link 35 and make a pad holding rod 49 descend. A rectangular frame 55 is attached to the side of a rail R, and an operation of the handle 7 at a position opposite to the rectangular frame 55 actuates the lock mechanism to engage the protrusion part 41 for engagement in the rectangular frame 55. An operation of the handle 7 at an other position actuates only the stopper mechanism to bring the pad 51 into downward contact with the rail R on the opposite edge at an arbitrary position.

Description

  The present invention relates to a door device including a lock mechanism and a stopper mechanism.

There is a vehicle in which a side portion is configured by an extendable hood type door, such as a transport truck described in Patent Document 1. During transportation, such a vehicle is extended by closing the hood, closing the side, and further locking the lock mechanism. However, during work such as unloading or loading a load, the lock mechanism is released and the hood is unlocked. Shrink and open the sides.
Thus, it has been pointed out that such a side telescopic hood type door has a disadvantage that the hood suddenly moves and extends or contracts when the vehicle is stopped on an inclined surface.

Japanese Patent Laid-Open No. 7-52655 Japanese Utility Model Publication No. 7-13543

In order to cope with this, Patent Document 2 proposes to provide a stopper mechanism on the telescopic hood type door, but this stopper mechanism is independent from the door locking mechanism, and a locking lever is provided. The stopper function is activated by moving the locking rod into the rail groove and pressing it against the groove wall.
Therefore, after operating the handle on the locking mechanism side to release the locking mechanism and extending the hood, this time, the locking lever on the stopper mechanism side is operated, and in addition, the locking lever is generally on the lower rail side. Therefore, it is difficult to deny that it is troublesome.

  The present invention has been made paying attention to the above-mentioned conventional problems, and an object of the present invention is to provide an apparatus capable of operating a stopper mechanism by a handle operation on the lock mechanism side.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The invention of claim 1 includes a door that is slidably guided with respect to the upper and lower rails, and is rotatably connected to the door side. And a lower link board and an upper link board each having a protruding piece portion for engagement and rotating in accordance with the rotation of the handle, and via a link mechanism by the rotation of the lower link board. And a stopper that moves up and down, and each of the projecting piece portions is tilted and rotated by the rotation of the lower link board and the upper link board, and the stopper is lowered with respect to the lower side. Are extended to the rail side, and are fully locked when the projecting piece portion engages with the rail side engaging portion, and are temporarily locked when the stopper only presses against the rail side pressed contact portion. This A door device provided with a locking mechanism, characterized in.

  According to a second aspect of the present invention, in the door device according to the first aspect, the raising / lowering means of the stopper is a multi-joint link mechanism that moves in a plane in a plane parallel to the lower link board. It is.

  According to a third aspect of the present invention, in the door device according to the second aspect, the raising / lowering means of the stopper is a seesaw link whose intermediate part is rotatably connected to the door side, and one end side is rotated to the seesaw link. The disk-side link is connected to the lower link disk so that the other end can be pivoted, and the lift link mechanism is pivotally coupled to the seesaw link at one end. It is a door device.

  According to a fourth aspect of the present invention, there is provided the door device according to the third aspect, wherein the elevating link mechanism has a stopper side link rotatably connected to the seesaw link and one end side of the stopper side link. It is composed of a pad holding rod that is pivotably connected, and a stopper is fitted on the stopper holding rod, is composed of a pad having a diameter larger than the opposite edge of the rail, and the pad holding rod is lowered to the rail When the pad is extended inward, the pad is temporarily locked by being pressed against the opposite edge of the rail from above.

  The invention according to claim 5 is the door device according to claim 4, wherein the pad holding rod is loosely fitted and guided by a guide cylinder provided on the door side.

  A sixth aspect of the invention is a vehicle including the door device according to any one of the first to fifth aspects.

  A seventh aspect of the present invention is the vehicle according to the sixth aspect, wherein the door device is provided on a side door provided with a telescopic hood.

  According to the door device of the present invention, the stopper mechanism can be operated at an arbitrary position by operating the handle on the lock mechanism side, and the stopper mechanism does not have to be exposed to the outer surface of the door.

It is a typical side view of the truck for transportation concerning an embodiment of the invention. It is the perspective view seen from the outer side of the door apparatus provided in the side part expansion-and-contraction hood type door provided in FIG. It is explanatory drawing of the link mechanism of the door apparatus shown in FIG. It is explanatory drawing of the operation | movement transition between the time of unlocking and the time of locking of the link mechanism shown in FIG. It is a perspective view which shows the state at the time of the unlocking of FIG. FIG. 5 is a perspective view showing a main lock state when locked in FIG. 4. It is a perspective view which shows the temporary lock state at the time of the lock | rock of FIG.

A door device 1 according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a transportation truck which is a kind of vehicle, and a telescopic hood door D is provided on a side portion of the transportation truck.
In this telescopic hood type door D, the door device 1 is connected to one side of the telescopic hood H. In this figure, the locking mechanism of the door device 1 is released, and the telescopic hood H contracts partially. The open state is shown.

As shown in FIG. 2, the telescopic hood H is attached to the right side of the door body 3 of the door device 1. Rollers (not shown) are connected to the top and bottom of the door body 3 and the top and bottom of the telescopic hood H, respectively, and the rollers are connected to the straight rails R respectively provided on the top and bottom edges of the side opening of the vehicle body. The guide groove T is slidably fitted.
A handle 5 is provided on the outer surface side of the door body 3. By grasping the handle 5 and pulling in the left-right direction, the door body 3 is guided by the rail R and slides and the telescopic hood H expands and contracts. It can be done.

First, the door body 3 side will be described.
As shown in FIG. 3, a link mechanism is provided on the inner surface side of the door body 3, and a lock mechanism and a stopper mechanism are configured to share this link mechanism. For convenience of explanation, this figure shows the link mechanism as viewed from the outside through the door body 3.
Reference numeral 7 denotes a handle. One end of the handle 7 is connected to a handle shaft penetrating the door main body 3 so as to be rotatable on the outer surface side of the door main body 3, and the other end is free. The handle 7 is connected to the handle shaft so as to be raised to the near side. A fitting recess 9 is formed on the outer surface side of the door body 3 corresponding to the handle 7. When the handle 7 is fitted in the fitting recess 9, the rotation is restricted and the free end side is separated. Thus, if it raises and it is made to remove | desorb from the insertion recessed part 9, it will be able to rotate.
The handle 7 can be used in place of the handle 5 and the door 3 can be pulled to open the side.

As shown in FIG. 3, the handle shaft is fixed to one end side of the handle link 11 on the inner surface side of the door body 3, and the inner handle link 11 rotates in conjunction with the turning operation of the outer handle 7. Move.
First, the upper side of the handle link 11 will be described.
On the upper side of the handle link 11, one end side of the parallel link 13 is rotatably attached to the door body 3. The attachment portion of the parallel link 13 is on substantially the same vertical axis as the attachment portion of the handle link 11, and both the other end sides of the handle link 11 and the parallel link 13 are also extended to the right. Reference numeral 15 denotes a connecting link. The lower end side of the connecting link 15 is connected to the other end side of the handle link 11 and the upper end side of the connecting link 15 is connected to the other end side of the parallel link 13 so as to be able to rotate. ing. In the door apparatus 1, the parallel movement guide of this parallel link mechanism is utilized as a raising / lowering means.

  A rotation fulcrum 18 on the lower end side of the “<”-shaped lock link 17 is connected to the intermediate portion of the parallel link 13 so as to be rotatable. The concave portion of the “<” shape of the lock link 17 is a hook portion 19, which is opposed to the mounting fulcrum 20 side of the parallel link 13 on the door body 3 side. The lower end of the upper rotation guide rod 21 is connected to the upper end side of the lock link 17. Via the lock link 17, the parallel movement guide of the parallel link mechanism is converted into the vertical movement of the upper rotation guide rod 21.

  Reference numeral 23 denotes a spring. One end of the spring 23 is attached to the door body 3 and hangs down, and the lower end thereof is attached to the upper end side of the lock link 17. The attachment portion of the spring 23 on the door body 3 side is set in consideration of lock holding (described later) by the lock link 17.

  Reference numeral 25 denotes an upper triangular board link, and the upper triangular board link 25 is rotatably attached to the door body 3 near the upper edge of the door body 3. The upper triangular disk link 25 has a concave side 27 that is recessed on one side, and the vicinity of the top of the concave side 27 is an attachment portion to the door body 3. Both end sides of the concave side 27 are projecting piece portions 29, 31. When the concave side 27 is opposed to the upper edge side of the door body 3, the upper rotation guide rod 21 is connected to the connecting projecting piece portion 29 on the right side. Are connected to each other so as to be rotatable. At this time, the engaged protrusion piece 31 on the left side is for engagement.

Next, the lower side of the handle link 11 will be described.
The upper end side of the lower rotation guide rod 33 is connected to the middle portion of the handle link 11 so as to be rotatable relative to each other.
Reference numeral 35 denotes a lower triangular board link, and the lower triangular board link 35 has the same shape as the upper triangular board link 25 described above. The lower triangular board link 35 is rotatably attached to the door main body 3 near the lower edge of the door main body 3, and its mounting portion is on the vertical direction of the mounting portion of the upper triangular board link 25.
In the vicinity of the apex angle facing the concave side 37 of the lower triangular disk link 35, the lower end side of the lower rotation guide rod 33 is connected to each other so as to be rotatable. One of the two projecting piece portions 39, 41 is for engagement.

  Reference numeral 43 denotes a seesaw link, and an intermediate portion of the seesaw link 43 is rotatably supported by the door body 3 as a rotation fulcrum. The upper end side of the panel follower link 45 is connected to the left end side of the seesaw link 43 so as to be rotatable with respect to each other. The panel follower link 45 hangs down, and the lower end of the panel follower link 45 is a connecting projecting piece that comes to the right when the lower triangular panel link 35 is opposed to the lower edge of the door body 3. 39 are rotatably connected to each other. At this time, the engaged protrusion 41 on the left side is for engagement.

Further, the upper end side of the pad side link 47 is connected to the right end side of the seesaw link 43 so as to be rotatable with respect to each other. The lower end side of the pad side link 47 is connected to the upper end side of the pad holding rod 49 so as to be rotatable.
The pad holding rod 49 hangs down, and an annular pad 51 made of an elastic material is fitted on the lower end side thereof. The pad 51 has a function as a stopper. The diameter of the pad holding rod 49 is designed to be smaller than the width dimension of the guide groove T. On the other hand, the outer diameter of the pad 51 is designed to be larger than the width dimension of the guide groove T of the rail R and smaller than the width dimension of the rail R.
The pad holding rod 49 completely penetrates the pad 51, and its lower end slightly protrudes from the pad 51.

Reference numeral 53 denotes a guide tube. The guide cylinder 53 is attached along the lower edge of the door body 3 and opens in the vertical direction. The lower end of the guide cylinder 53 is substantially flush with the lower edge of the door body 3.
The pad holding rod 49 is passed through the guide cylinder 53. Since the pad 51 is on the lower end side of the guide tube 53 and the outer diameter of the pad 51 is larger than the hole diameter of the guide tube 53, the passage is restricted.

Next, the rail R side will be described.
As shown in FIG. 2, a rectangular frame 55 as an engaging portion is attached to the rail R side. The rectangular frame 55 is a rectangular thin flat plate having a rectangular opening 57 formed therein. The outer width dimension of the rectangular frame 55 is substantially the same as the width dimension of the rail R, and the width dimension of the rectangular opening 57 is substantially the same as the width dimension of the guide groove T. As shown in the figure, the rectangular frame 55 is mounted on the guide groove T of the rail R, and opposite edges 59 of the rectangular opening 57 are horizontally mounted on both sides of the guide groove T in the guide direction.
Note that the rectangular frame 55 is similarly attached on the vertical direction of the lower rectangular frame 55 on the upper rail R side.

The lock mechanism and the stopper mechanism share a part of the link mechanism described above. The lock mechanism includes a link mechanism extending from the handle 7 to the upper triangular board link 25 and the lower triangular board link 35, and an upper and lower rectangular shape. It is constituted by frames 55 and 55.
The stopper mechanism is constituted by a link mechanism that extends from the handle 7 through the lower triangular board link 35 to the pad holding rod 49, and is a multi-node that moves in a plane in a plane parallel to the lower triangular board link 35. It has a structure, and the protrusion from the inside of the door body 3 is minimized so as not to get in the way.

Next, operations of the lock mechanism and the stopper mechanism will be described with reference to FIG. 4 shows the link mechanism as seen from the outside through the door body 3 as in FIG.
FIG. 4A shows the unlocked state.
The handle 7 is removed from the fitting recess 9.
On the upper side of the handle 7, the upper rotation guide rod 21 is pulled up by the spring 23 via the lock link 17, and the rotation of the upper triangular board link 25 is also restricted, so that the projecting pieces 29 and 31 are both door bodies. It is held in a state of being opposed to each other at a position within the 3 side.
In addition, the parallel link 13 is pulled up in the right upward direction via the lock link 17, and the handle 7 is also pulled up in the horizontal direction.

Further, the parallel link mechanism is held in an expanded state by pulling up the lock link 17 below the handle 7.
Therefore, the rotation of the lower triangular board link 35 is restricted via the lower rotation guide rod 33 connected to the handle link 11, and the projecting piece portions 39 and 41 are opposed to each other at a position within the door body 3 side. It is held in the state.

  Further, since the rotation of the lower triangular board link 35 is restricted, the rotation of the seesaw link 43 linked thereto is also restricted. Since the seesaw link 43 is pulled down on the left end side, it is raised on the opposite right end side. Therefore, the pad side link 47 is pulled up, the upper surface of the pad 51 is in contact with the lower end of the guide cylinder 53, and is lifted from the opposite edge of the guide groove T of the rail R.

Accordingly, when the door body 3 is pushed or pulled along the rail R, the upper triangular board link 25 and the rectangular frame 55 provided on the upper side, the lower triangular board link 35 and the rectangular frame 55 provided on the lower side are provided. Do not interfere with each other. Further, the pad 51 and the rail R do not interfere with each other.
FIG. 5 is a perspective view of this state, and the door body 3 and the telescopic hood H slide smoothly.

FIG. 4B shows the locked state. The handle 7 is rotated against the spring 23 to change from unlocked to locked.
At this time, on the upper side of the handle 7, the handle link 11 of the parallel link mechanism rotates clockwise in conjunction with the rotation of the handle 7, and is connected to the parallel link 13 of the parallel link mechanism along with the rotation. Then, the lock link 17 is pulled down, and the hook 19 is attached to the attachment fulcrum 20 of the parallel link 13. Before the rotation fulcrum 18 of the lock link 17 gets over the attachment fulcrum 20, the urging direction of the spring 23 is the direction in which the attachment fulcrum 20 is removed from the hook portion 19 of the lock link 17. Since the direction changes to the direction in which the attachment fulcrum 20 is applied to the portion 19, the state is maintained even when the handle 7 is released by locking the hook 18 of the lock link 17 with the attachment fulcrum 20 of the parallel link 13. .
The upper rotation guide rod 21 is pulled down as the lock link 17 is pulled down, and the upper triangular board link 25 is rotated in the clockwise direction as the lock link 17 is pulled down. Turn to. Accordingly, the projecting piece portion 31 to be engaged protrudes to the maximum from the door body 3, extends into the guide groove T of the rail R, and is held at that position. At this time, when the engaged projecting piece portion 31 is located at a position opposite to the rectangular frame 55, it enters the rectangular opening 57 and comes into contact with the opposing edge 59 on the front side in the rotational direction to restrict the movement. The book is locked. At the time of the locking, the door body 3 is positioned in contact with the side edge of the vehicle body, so that the turning trajectory at the tip of the engaged piece portion 31 does not interfere with the opposite edge 59 on the rear side in the turning direction. Then, it smoothly enters the rectangular opening 57.

On the other hand, on the lower side of the handle 7, the lower triangular disk link 35 rotates counterclockwise via the lower rotation guide rod 33 connected to the handle link 11, so that the engaged projecting piece portion 41 is rotated. Rotate to the lying side. Accordingly, the projecting piece portion 41 to be engaged protrudes maximally downward from the door body 3, extends into the guide groove T of the rail R, and is held at that position. When the upper side is fully locked, the engaged projecting piece 41 enters the rectangular opening 57 of the rectangular frame 55 and is also locked at the lower side. In this way, the lock mechanism works by operating the handle 7.
In addition, since the upper and lower triangular disk links 25 and 35 are not in contact with the bottom surface of the guide groove T, the engaged projecting piece portions 31 and 41 do not hit the bottom surface and are not damaged during the main locking.

When the board follower link 45 is lifted with the rotation of the lower triangular board link 35, the opposite pad side link 47 is lowered by the seesaw action of the seesaw link 43. As a result, the pad holding rod 49 is also lowered, and the pad 51 fitted on the pad rod extends to the rail R side and presses against the opposite edge of the rail R from above. As a result, temporary locking is performed. In this way, the stopper mechanism works. Only the stopper mechanism works at the intermediate position on the side where the locking mechanism does not work.
At this time, the pad side link 47 and the pad holding rod 49 are rotatably connected to each other, and the pad holding rod 49 is loosely fitted to the guide tube 53 and guided, so that the pad holding rod 49 is in the vertical direction. Is held, and the entire lower surface of the pad 51 is used for pressure contact, so that the stopper function works stably.

FIG. 6 is a perspective view of the main lock state due to the engagement of the triangular disk links 25 and 35. When the lock mechanism is working, the main lock state is set. As a result, the stopper mechanism by the pressure contact of the pad 51 is also working, but the lock function itself is sufficiently performed only by the main lock.
FIG. 7 is a perspective view of a temporary lock state due to the pressure contact of the pad 51. When the stopper mechanism is working, it is in the temporary lock state. Since the temporary lock is possible at any position, the opening degree of the telescopic hood H can be adjusted.

As described above, the lock can be performed by rotating the handle 7. Further, by inserting the handle 7 into the recess 9, the double lock is operated so that the handle 7 does not rotate.
When the handle 7 is rotated and the mounting fulcrum 20 of the parallel link 13 is removed from the hook portion 19 of the lock link 17, the unlocked state is easily restored by the elastic restoring force of the spring 23.
According to the door device 1 of the present invention, the lock function and the stopper function can be operated by operating the common handle 7.
Further, since the link mechanism of the door device is disposed on the inner surface side of the door main body 3, dust and dirt are not involved during transportation.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the present invention can be applied even if there is a design change without departing from the gist of the present invention. include.
For example, even if the link mechanism is partially deformed, it is included in the present invention as long as the function described in the claims can be performed.

  In the case of the telescopic hood type door, the door slides even if it is lightly pushed or pulled. Therefore, it is particularly advantageous to apply the door device of the present invention.

D ... Telescopic top door H ... Telescopic top R ... Rail T ... Guide groove 1 ... Door device 3 ... Door body 5 ... Handle 7 ... Handle 9 ... Insertion recess 11 ... Handle link 13 ... Parallel link 15 ... Connection link 17 ... Lock link 18 ... Rotating fulcrum 19 ... Hook part 20 ... Mounting fulcrum 21 ... Upper rotation guide rod 23 ... Spring 25 ... Upper triangular board link 27 ... Concave side 29 ... Connecting protrusion piece 31 ... Engaging protrusion piece Portion 33 ... Lower rotation guide rod 35 ... Lower triangular disk link 37 ... Concave side 39 ... Projection piece 41 for connection 41 ... Projection piece for engagement 43 ... Seesaw link 45 ... Board driven link 47 ... Pad side link 49 ... Pad holding rod 51 ... Pad 53 ... Guide cylinder 55 ... Rectangle frame 57 ... Rectangle opening 59 ... Opposite edge

Claims (7)

  A door guided to be slidable with respect to the upper and lower rails, a handle connected to the door so as to be rotatable, and a protruding piece portion for engagement, respectively, and according to the rotation of the handle A lower link board and an upper link board that rotate, and a stopper that moves up and down via a link mechanism by the rotation of the lower link board, The projecting piece portion is turned down and the stopper is lowered with respect to the lower side, the projecting piece portion and the stopper both extend to the rail side, and the projecting piece portion is engaged with the engaging portion on the rail side. A door device provided with a lock mechanism, wherein the door device is locked when it is mated, and is temporarily locked when the stopper is only in pressure contact with the pressure contact portion on the rail side. The door device according to claim 1,
The door device characterized in that the raising / lowering means of the stopper is a multi-node link mechanism that moves in a plane parallel to the lower link board. The door device according to claim 2,
The stopper lifting / lowering means includes a seesaw link whose middle part is rotatably connected to the door side, one end side is rotatably connected to the seesaw link, and the other end side is rotatable to the lower link board. A door device comprising: a connected disk side link; and an elevating link mechanism having one end side rotatably connected to the seesaw link. In the door device according to claim 3,
The elevating link mechanism is composed of a stopper side link whose one end side is rotatably connected to the seesaw link, and a pad holding rod whose one end side is rotatably connected to the other end side of the stopper side link,
The stopper is externally fitted to the stopper holding rod, and is composed of a pad having a larger diameter than the opposite edge of the rail.
When the pad holding rod descends and extends into the rail, the pad is temporarily locked by being pressed against the opposite edge of the rail from above. The door device according to claim 4,
The pad holding rod is loosely fitted and guided by a guide tube provided on the door side.   A vehicle comprising the door device according to any one of claims 1 to 5.   7. The vehicle according to claim 6, wherein the door device is provided on a side door provided with a telescopic hood.

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